
| APR | MAY | JUN | JUL | AUG | SEP | |||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Site | ||||||||||||||||||||||||||
| Large White | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Small White | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | ||||||
| Green-veined White | . | . | 2 | 10 | 4 | 8 | 10 | . | . | . | 1 | 5 | 4 | 3 | 7 | 3 | 4 | 2 | . | 1 | ||||||
| Orange Tip | . | . | . | 4 | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | . | . | . | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small Copper | . | . | . | . | . | . | . | . | . | . | . | . | 4 | 4 | 2 | 4 | 3 | 4 | 2 | . | ||||||
| Common Blue | . | . | . | . | . | . | . | . | . | 3 | 3 | 3 | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 1 | 1 | 2 | ||||||
| Small Tortoiseshell | 1 | 1 | . | . | . | . | . | . | . | . | . | 12 | 4 | 4 | 9 | 4 | 6 | . | . | . | ||||||
| Small Pearl-bordered Fritillary | . | . | . | . | . | . | . | 4 | 6 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Scotch Argus | . | . | . | . | . | . | . | . | . | 1 | 1 | 43 | 53 | 24 | 6 | 5 | 3 | 1 | . | . | ||||||
| Small Heath | . | . | . | . | . | 3 | 3 | 2 | 5 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Large Heath | . | . | . | . | . | . | . | 2 | 2 | 1 | 4 | . | . | . | . | . | . | . | . | . | ||||||
| Unknown White | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | ||||||